I dont know if there is any difference between any versions, since I haven't used 10g, but I am actually using 6i. To display a Chart, I use the Graphics solution that came with Developer 6i. While there is almost no situation when I have to use one in a form, I have use them a lot in reports generation. Try to play a litle bit with it, and see if you can understand it further. One thing you must have in mind is that, the Graphcis gets generated from actual data, meaning this that you must have it somewhere before launching it.